This source file includes following definitions.
- pi_test_and_set_on
- pi_test_and_clear_on
- pi_test_and_set_pir
- pi_is_pir_empty
- pi_set_sn
- pi_set_on
- pi_clear_on
- pi_clear_sn
- pi_test_on
- pi_test_sn
- vmx_get_rvi
- BUILD_CONTROLS_SHADOW
- vmx_vmentry_ctrl
- vmx_vmexit_ctrl
- to_kvm_vmx
- to_vmx
- vcpu_to_pi_desc
- alloc_vmcs
- __vmx_flush_tlb
- vmx_flush_tlb
- decache_tsc_multiplier
- vmx_has_waitpkg
1
2 #ifndef __KVM_X86_VMX_H
3 #define __KVM_X86_VMX_H
4
5 #include <linux/kvm_host.h>
6
7 #include <asm/kvm.h>
8 #include <asm/intel_pt.h>
9
10 #include "capabilities.h"
11 #include "ops.h"
12 #include "vmcs.h"
13
14 extern const u32 vmx_msr_index[];
15 extern u64 host_efer;
16
17 extern u32 get_umwait_control_msr(void);
18
19 #define MSR_TYPE_R 1
20 #define MSR_TYPE_W 2
21 #define MSR_TYPE_RW 3
22
23 #define X2APIC_MSR(r) (APIC_BASE_MSR + ((r) >> 4))
24
25 #define NR_AUTOLOAD_MSRS 8
26
27 struct vmx_msrs {
28 unsigned int nr;
29 struct vmx_msr_entry val[NR_AUTOLOAD_MSRS];
30 };
31
32 struct shared_msr_entry {
33 unsigned index;
34 u64 data;
35 u64 mask;
36 };
37
38 enum segment_cache_field {
39 SEG_FIELD_SEL = 0,
40 SEG_FIELD_BASE = 1,
41 SEG_FIELD_LIMIT = 2,
42 SEG_FIELD_AR = 3,
43
44 SEG_FIELD_NR = 4
45 };
46
47
48 struct pi_desc {
49 u32 pir[8];
50 union {
51 struct {
52
53 u16 on : 1,
54
55 sn : 1,
56
57 rsvd_1 : 14;
58
59 u8 nv;
60
61 u8 rsvd_2;
62
63 u32 ndst;
64 };
65 u64 control;
66 };
67 u32 rsvd[6];
68 } __aligned(64);
69
70 #define RTIT_ADDR_RANGE 4
71
72 struct pt_ctx {
73 u64 ctl;
74 u64 status;
75 u64 output_base;
76 u64 output_mask;
77 u64 cr3_match;
78 u64 addr_a[RTIT_ADDR_RANGE];
79 u64 addr_b[RTIT_ADDR_RANGE];
80 };
81
82 struct pt_desc {
83 u64 ctl_bitmask;
84 u32 addr_range;
85 u32 caps[PT_CPUID_REGS_NUM * PT_CPUID_LEAVES];
86 struct pt_ctx host;
87 struct pt_ctx guest;
88 };
89
90
91
92
93
94 struct nested_vmx {
95
96 bool vmxon;
97 gpa_t vmxon_ptr;
98 bool pml_full;
99
100
101 gpa_t current_vmptr;
102
103
104
105
106
107 struct vmcs12 *cached_vmcs12;
108
109
110
111
112
113 struct vmcs12 *cached_shadow_vmcs12;
114
115
116
117
118
119 bool need_vmcs12_to_shadow_sync;
120 bool dirty_vmcs12;
121
122
123
124
125
126 bool need_sync_vmcs02_to_vmcs12_rare;
127
128
129
130
131
132
133 bool vmcs02_initialized;
134
135 bool change_vmcs01_virtual_apic_mode;
136
137
138
139
140
141
142 bool enlightened_vmcs_enabled;
143
144
145 bool nested_run_pending;
146
147 struct loaded_vmcs vmcs02;
148
149
150
151
152
153 struct page *apic_access_page;
154 struct kvm_host_map virtual_apic_map;
155 struct kvm_host_map pi_desc_map;
156
157 struct kvm_host_map msr_bitmap_map;
158
159 struct pi_desc *pi_desc;
160 bool pi_pending;
161 u16 posted_intr_nv;
162
163 struct hrtimer preemption_timer;
164 bool preemption_timer_expired;
165
166
167 u64 vmcs01_debugctl;
168 u64 vmcs01_guest_bndcfgs;
169
170 u16 vpid02;
171 u16 last_vpid;
172
173 struct nested_vmx_msrs msrs;
174
175
176 struct {
177
178 bool vmxon;
179
180 bool guest_mode;
181 } smm;
182
183 gpa_t hv_evmcs_vmptr;
184 struct kvm_host_map hv_evmcs_map;
185 struct hv_enlightened_vmcs *hv_evmcs;
186 };
187
188 struct vcpu_vmx {
189 struct kvm_vcpu vcpu;
190 u8 fail;
191 u8 msr_bitmap_mode;
192
193
194
195
196
197
198
199
200 bool guest_state_loaded;
201
202 u32 exit_intr_info;
203 u32 idt_vectoring_info;
204 ulong rflags;
205
206 struct shared_msr_entry *guest_msrs;
207 int nmsrs;
208 int save_nmsrs;
209 bool guest_msrs_ready;
210 #ifdef CONFIG_X86_64
211 u64 msr_host_kernel_gs_base;
212 u64 msr_guest_kernel_gs_base;
213 #endif
214
215 u64 spec_ctrl;
216 u32 msr_ia32_umwait_control;
217
218 u32 secondary_exec_control;
219
220
221
222
223
224
225 struct loaded_vmcs vmcs01;
226 struct loaded_vmcs *loaded_vmcs;
227
228 struct msr_autoload {
229 struct vmx_msrs guest;
230 struct vmx_msrs host;
231 } msr_autoload;
232
233 struct {
234 int vm86_active;
235 ulong save_rflags;
236 struct kvm_segment segs[8];
237 } rmode;
238 struct {
239 u32 bitmask;
240 struct kvm_save_segment {
241 u16 selector;
242 unsigned long base;
243 u32 limit;
244 u32 ar;
245 } seg[8];
246 } segment_cache;
247 int vpid;
248 bool emulation_required;
249
250 u32 exit_reason;
251
252
253 struct pi_desc pi_desc;
254
255
256 struct nested_vmx nested;
257
258
259 unsigned int ple_window;
260 bool ple_window_dirty;
261
262 bool req_immediate_exit;
263
264
265 #define PML_ENTITY_NUM 512
266 struct page *pml_pg;
267
268
269 u64 hv_deadline_tsc;
270
271 u64 current_tsc_ratio;
272
273 u32 host_pkru;
274
275 unsigned long host_debugctlmsr;
276
277
278
279
280
281
282 u64 msr_ia32_feature_control;
283 u64 msr_ia32_feature_control_valid_bits;
284 u64 ept_pointer;
285
286 struct pt_desc pt_desc;
287 };
288
289 enum ept_pointers_status {
290 EPT_POINTERS_CHECK = 0,
291 EPT_POINTERS_MATCH = 1,
292 EPT_POINTERS_MISMATCH = 2
293 };
294
295 struct kvm_vmx {
296 struct kvm kvm;
297
298 unsigned int tss_addr;
299 bool ept_identity_pagetable_done;
300 gpa_t ept_identity_map_addr;
301
302 enum ept_pointers_status ept_pointers_match;
303 spinlock_t ept_pointer_lock;
304 };
305
306 bool nested_vmx_allowed(struct kvm_vcpu *vcpu);
307 void vmx_vcpu_load_vmcs(struct kvm_vcpu *vcpu, int cpu,
308 struct loaded_vmcs *buddy);
309 void vmx_vcpu_load(struct kvm_vcpu *vcpu, int cpu);
310 int allocate_vpid(void);
311 void free_vpid(int vpid);
312 void vmx_set_constant_host_state(struct vcpu_vmx *vmx);
313 void vmx_prepare_switch_to_guest(struct kvm_vcpu *vcpu);
314 void vmx_set_host_fs_gs(struct vmcs_host_state *host, u16 fs_sel, u16 gs_sel,
315 unsigned long fs_base, unsigned long gs_base);
316 int vmx_get_cpl(struct kvm_vcpu *vcpu);
317 unsigned long vmx_get_rflags(struct kvm_vcpu *vcpu);
318 void vmx_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
319 u32 vmx_get_interrupt_shadow(struct kvm_vcpu *vcpu);
320 void vmx_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask);
321 void vmx_set_efer(struct kvm_vcpu *vcpu, u64 efer);
322 void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
323 void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
324 int vmx_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
325 void set_cr4_guest_host_mask(struct vcpu_vmx *vmx);
326 void ept_save_pdptrs(struct kvm_vcpu *vcpu);
327 void vmx_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
328 void vmx_set_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
329 u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa);
330 void update_exception_bitmap(struct kvm_vcpu *vcpu);
331 void vmx_update_msr_bitmap(struct kvm_vcpu *vcpu);
332 bool vmx_get_nmi_mask(struct kvm_vcpu *vcpu);
333 void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked);
334 void vmx_set_virtual_apic_mode(struct kvm_vcpu *vcpu);
335 struct shared_msr_entry *find_msr_entry(struct vcpu_vmx *vmx, u32 msr);
336 void pt_update_intercept_for_msr(struct vcpu_vmx *vmx);
337 void vmx_update_host_rsp(struct vcpu_vmx *vmx, unsigned long host_rsp);
338
339 #define POSTED_INTR_ON 0
340 #define POSTED_INTR_SN 1
341
342 static inline bool pi_test_and_set_on(struct pi_desc *pi_desc)
343 {
344 return test_and_set_bit(POSTED_INTR_ON,
345 (unsigned long *)&pi_desc->control);
346 }
347
348 static inline bool pi_test_and_clear_on(struct pi_desc *pi_desc)
349 {
350 return test_and_clear_bit(POSTED_INTR_ON,
351 (unsigned long *)&pi_desc->control);
352 }
353
354 static inline int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc)
355 {
356 return test_and_set_bit(vector, (unsigned long *)pi_desc->pir);
357 }
358
359 static inline bool pi_is_pir_empty(struct pi_desc *pi_desc)
360 {
361 return bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS);
362 }
363
364 static inline void pi_set_sn(struct pi_desc *pi_desc)
365 {
366 set_bit(POSTED_INTR_SN,
367 (unsigned long *)&pi_desc->control);
368 }
369
370 static inline void pi_set_on(struct pi_desc *pi_desc)
371 {
372 set_bit(POSTED_INTR_ON,
373 (unsigned long *)&pi_desc->control);
374 }
375
376 static inline void pi_clear_on(struct pi_desc *pi_desc)
377 {
378 clear_bit(POSTED_INTR_ON,
379 (unsigned long *)&pi_desc->control);
380 }
381
382 static inline void pi_clear_sn(struct pi_desc *pi_desc)
383 {
384 clear_bit(POSTED_INTR_SN,
385 (unsigned long *)&pi_desc->control);
386 }
387
388 static inline int pi_test_on(struct pi_desc *pi_desc)
389 {
390 return test_bit(POSTED_INTR_ON,
391 (unsigned long *)&pi_desc->control);
392 }
393
394 static inline int pi_test_sn(struct pi_desc *pi_desc)
395 {
396 return test_bit(POSTED_INTR_SN,
397 (unsigned long *)&pi_desc->control);
398 }
399
400 static inline u8 vmx_get_rvi(void)
401 {
402 return vmcs_read16(GUEST_INTR_STATUS) & 0xff;
403 }
404
405 #define BUILD_CONTROLS_SHADOW(lname, uname) \
406 static inline void lname##_controls_set(struct vcpu_vmx *vmx, u32 val) \
407 { \
408 if (vmx->loaded_vmcs->controls_shadow.lname != val) { \
409 vmcs_write32(uname, val); \
410 vmx->loaded_vmcs->controls_shadow.lname = val; \
411 } \
412 } \
413 static inline u32 lname##_controls_get(struct vcpu_vmx *vmx) \
414 { \
415 return vmx->loaded_vmcs->controls_shadow.lname; \
416 } \
417 static inline void lname##_controls_setbit(struct vcpu_vmx *vmx, u32 val) \
418 { \
419 lname##_controls_set(vmx, lname##_controls_get(vmx) | val); \
420 } \
421 static inline void lname##_controls_clearbit(struct vcpu_vmx *vmx, u32 val) \
422 { \
423 lname##_controls_set(vmx, lname##_controls_get(vmx) & ~val); \
424 }
425 BUILD_CONTROLS_SHADOW(vm_entry, VM_ENTRY_CONTROLS)
426 BUILD_CONTROLS_SHADOW(vm_exit, VM_EXIT_CONTROLS)
427 BUILD_CONTROLS_SHADOW(pin, PIN_BASED_VM_EXEC_CONTROL)
428 BUILD_CONTROLS_SHADOW(exec, CPU_BASED_VM_EXEC_CONTROL)
429 BUILD_CONTROLS_SHADOW(secondary_exec, SECONDARY_VM_EXEC_CONTROL)
430
431 static inline void vmx_segment_cache_clear(struct vcpu_vmx *vmx)
432 {
433 vmx->segment_cache.bitmask = 0;
434 }
435
436 static inline u32 vmx_vmentry_ctrl(void)
437 {
438 u32 vmentry_ctrl = vmcs_config.vmentry_ctrl;
439 if (pt_mode == PT_MODE_SYSTEM)
440 vmentry_ctrl &= ~(VM_ENTRY_PT_CONCEAL_PIP |
441 VM_ENTRY_LOAD_IA32_RTIT_CTL);
442
443 return vmentry_ctrl &
444 ~(VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL | VM_ENTRY_LOAD_IA32_EFER);
445 }
446
447 static inline u32 vmx_vmexit_ctrl(void)
448 {
449 u32 vmexit_ctrl = vmcs_config.vmexit_ctrl;
450 if (pt_mode == PT_MODE_SYSTEM)
451 vmexit_ctrl &= ~(VM_EXIT_PT_CONCEAL_PIP |
452 VM_EXIT_CLEAR_IA32_RTIT_CTL);
453
454 return vmexit_ctrl &
455 ~(VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL | VM_EXIT_LOAD_IA32_EFER);
456 }
457
458 u32 vmx_exec_control(struct vcpu_vmx *vmx);
459 u32 vmx_pin_based_exec_ctrl(struct vcpu_vmx *vmx);
460
461 static inline struct kvm_vmx *to_kvm_vmx(struct kvm *kvm)
462 {
463 return container_of(kvm, struct kvm_vmx, kvm);
464 }
465
466 static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu)
467 {
468 return container_of(vcpu, struct vcpu_vmx, vcpu);
469 }
470
471 static inline struct pi_desc *vcpu_to_pi_desc(struct kvm_vcpu *vcpu)
472 {
473 return &(to_vmx(vcpu)->pi_desc);
474 }
475
476 struct vmcs *alloc_vmcs_cpu(bool shadow, int cpu, gfp_t flags);
477 void free_vmcs(struct vmcs *vmcs);
478 int alloc_loaded_vmcs(struct loaded_vmcs *loaded_vmcs);
479 void free_loaded_vmcs(struct loaded_vmcs *loaded_vmcs);
480 void loaded_vmcs_init(struct loaded_vmcs *loaded_vmcs);
481 void loaded_vmcs_clear(struct loaded_vmcs *loaded_vmcs);
482
483 static inline struct vmcs *alloc_vmcs(bool shadow)
484 {
485 return alloc_vmcs_cpu(shadow, raw_smp_processor_id(),
486 GFP_KERNEL_ACCOUNT);
487 }
488
489 u64 construct_eptp(struct kvm_vcpu *vcpu, unsigned long root_hpa);
490
491 static inline void __vmx_flush_tlb(struct kvm_vcpu *vcpu, int vpid,
492 bool invalidate_gpa)
493 {
494 if (enable_ept && (invalidate_gpa || !enable_vpid)) {
495 if (!VALID_PAGE(vcpu->arch.mmu->root_hpa))
496 return;
497 ept_sync_context(construct_eptp(vcpu,
498 vcpu->arch.mmu->root_hpa));
499 } else {
500 vpid_sync_context(vpid);
501 }
502 }
503
504 static inline void vmx_flush_tlb(struct kvm_vcpu *vcpu, bool invalidate_gpa)
505 {
506 __vmx_flush_tlb(vcpu, to_vmx(vcpu)->vpid, invalidate_gpa);
507 }
508
509 static inline void decache_tsc_multiplier(struct vcpu_vmx *vmx)
510 {
511 vmx->current_tsc_ratio = vmx->vcpu.arch.tsc_scaling_ratio;
512 vmcs_write64(TSC_MULTIPLIER, vmx->current_tsc_ratio);
513 }
514
515 static inline bool vmx_has_waitpkg(struct vcpu_vmx *vmx)
516 {
517 return vmx->secondary_exec_control &
518 SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE;
519 }
520
521 void dump_vmcs(void);
522
523 #endif